牛头 Traditional form: 牛頭 Pinyin (reading): Niú Tóu Definitions: Ox-Head, one of the two guardians of the underworld in Chinese mythology Characters: 牛 - ox, cow, bull 头 - head; chief, boss; first, top Traditional characters: 牛 - ox, cow, bull 頭 - head; chief, boss; first, top